Wringer



Feb. 25, 1941. w. KA FFMAN 2D YWRINGER Filed March 17. 1937 I VENTOR. 71 2;?

A TTORNEYS.

name ms. 25, 1941 PATENT OFFICE WRINGEB Walter L. Kanflman, 11, Erie, Pa... assignor to Lovell Manufacturing Company, Erie, Pa., a corporation of Pennsylvania Application March 17, 1937, Serial No. 131,326

5 Claims.

Wringers as commonly produced involve wringing rolls .having pressure exerting means operating on the rolls, some means being provided to quickly release the pressure so as to release any person caught in the rolls. After such pressure is released it is necessary to reset the pressure. The present invention is designed to simplify the releasing and setting mechanism. Features and details of the invention will appear from the specification and claims.

A preferred embodiment of the invention is illustrated in the accompanying drawing as follows:

Fig. 1 shows a front elevation of a wringer partly in section, with the-parts in set condition.

Fig. 2 a similar view of a portion of the wringer with the pressure released.

Fig. 3 a view of the end of the top and the upper end of a stile showing the attaching parts in detached position.

Fig. 4 a plan view of the releasing end of the wringer.

Fig. 5 a section on the line 5-5 in Fig. 1.

l marks the base, 2 and 3 side stiles,;the base and side stiles forming the frame of the wringer. l a lower roll provided with a shaft 5. 6 an upper roll provided with a shaft 1. The shaft 5 is journaled in bearing blocks 8 arranged in the side stiles and mounted on brackets 9. Bearings ID are provided for the shafts 'l and are slidingly mounted in the side stiles. A spring H is seated on the upper part of the bearing blocks Ill. The spring is adjusted by screw 12 operating through fitting l3. The fitting I3 is mounted in a top bar H.

The top bar is detachably connected at one end by means of a shoulder I5 struck up in the form of a lip from the outer face of the stile, and a shoulder l6 formed by striking outwardly a lip on the end of the top bar. These shoulders interlock when the top bar is in place so as to hold the top bar in position during the normal operation of the wringer, but are so formed that as the top bar swings up from the opposite end these shoulders release as indicated in Fig. 3, thus releasing this end of the top bar and affording greater release clearance.

The top bar is provided with a release and resetting device at the opposite end from the engaging shoulders l5 and I6. This releasing and resetting device comprises a toggle lever having the links l1 and I8. The link I1 is pivoted to the top bar by means of a pin IS. The link I! is channel formed so that when it is closed down the sides of the channel pass along the front and rear faces of the stile 2. The link I! is plvotally connected with the link It by a pin 20. The link I8 is made up of side plates straddling the side stiles and arranged within the sides of the channel formed link H. The 5 side plates of the link l8 are connected by bridge piece Ma. 'The link I1 is extended at 23 forming a handle by which the toggle lever may be actuated. The pivots of the toggle lever are out of alignment as indicated in dash lines in Fig. 1. That is to say the link I1 is carried past the neutral point, the movement being limited by the side stile. This movement past the neutral position creates a stable condition by. means of which the toggle lever is yieldingly locked in set position and held in this locked position by pressure of the main spring. The link H has a pro jection 24 and this, when the parts. are set, is directly under a lever arm 25. The lever 25 has a pivot end 26 which extends through a slot 21 2 in thetop bar. The arm 25 is connected with an operating rod or bar 28. This bar extends across the front of the top bar and has a similar arm at the opposite end of the top bar. The slots 21 at the ends of the top bar are of keyhole 25 form, Fig. 3. By springing the connecting bar the pivot ends 26 are inserted in the long part of the keyhole slot and spring outwardly into the short part, thus locking the arms in assembled position. The bar 28 which constitutes a 30 trip means is directly manually energized initially when actuated to release pressure on the rolls. The wringer is provided with these bars at both the front and the rear, and the projections 24 are arranged on both sides of the link 51. In operation with the parts in the position shown in Fig. 1 either operating bar 28 is depressed. This operating on the projection 24 throws the link ll outwardly past the neutral point and the toggle lever is thus broken permitting an upward movement of the top bar so as to release pressure on the spring. This upward swinging movement of the top bar at the release end of the bar disengages the catches or shoulders l5 and ill at the opposite end of the bar so that this end of the bar also can move upwardly to give ample release movement to the rolls.

What I claim as new is:

1. In a wringer having a frame comprising a base and side stiles; top and bottom rolls mounted in the stiles; a top bar mounted on the stiles; a pressure means exerting pressure from the top bar to the rolls; the combination with the frame, rolls, top bar and pressure means of a resetting and release device operating on the top bar comprising a toggle having one link operatively connected to the top bar and the other link operatively connected with a stile, the link connection with the top bar being extended to form a lever operating on a downward movement of the lever to reset, through the operation of the toggle on the top bar, pressure on the pressure means, said toggle links being brought to approximate alignment in set position and breaking in the opposite direction to release the top bar to relieve pressure on the pressure means, and means on the top bar comprising a structure constructed and arranged to engage and adapted to force the toggle in a release direction to release the pressure.

2. In a wringer having a frame comprising a base and side stiles; top and bottom rolls mounted in the stiles; a top bar mounted on the stiles;

a pressure means exerting pressure from the top bar to the rolls; the combination with the frame, rolls, top bar and pressure means of a resetting and release device operating on the top bar comprising a toggle having one link operatively connected to the top bar and the other link operatively connected with a stile, the link connection with the top bar being extended to form a lever operating on a downward movement of the lever to reset, through the operation of the toggle on the top bar, pressure on the pressure means, said toggle links being brought to approximate alignment in set position and breaking in the opposite direction to release the top bar to relieve pressure on the pressure means, and a trip means mounted on the top bar directly manually energized initially on release actuation, and constructed and arranged to force the toggle in a release direction during the release movement of the trip means to initiate the release of the toggle.

3.-In a wringer having a frame comprising a base and side stiles; top and bottom rolls mounted in the stiles; a top bar mounted on the stiles; a pressure means exerting pressure from the top bar to the rolls; the combination with the frame, rolls, top bar and pressure means of a resetting and release device operating on the top bar comprising a toggle having one link operatively connected to the top bar and the other link operatively connected with a stile, the link connection with the top bar being extended to form a lever operating ona downward movement of the lever to reset, through the operation of the toggle on the top bar, pressure on the pressure means, said toggle links being brought to approximate alignment in set position and breaking in the opposite direction to release the top bar to relieve pressure on the pressure means, and a trip means mounted on the top bar manually energized initially on release actuation, and constructed and arranged to force the toggle in a release direction during the release of the toggle.

4. In a wringer having a frame comprising a base and side stiles; top and bottom rolls mounted in the stiles; a top bar mounted on the stiles; a pressure means exerting pressure from the top bar to the rolls; the combination with the frame, rolls, top bar and pressure device of a resetting and release device operating on the top bar comprising a toggle having one link operatively connected to the top bar and the other link operatively connected with a stile, the link connection with the top bar being extended to form a lever operating on a downward movement of the lever to reset, through the operation of the toggle on the top bar, pressure on the pressure device, said toggle links being brought to approximate alignment in set position and breaking in the opposite direction to release. the top bar to relieve pressure on the pressure means, the links pivoted on the top bar having an inwardly extending arm; and a trip bar extending along the front of the wringer and pivotally mounted on the top bar, said trip bar engaging the extending arm and adapted through such engagement to actuate the toggle to effect a release.

5. In a wringer having a frame comprising a base and side stiles; top and bottom rolls mounted in the stiles; a top bar mounted on the stiles; a pressure means exerting pressure from the top bar to the rolls; the combination with the frame, rolls, top bar and pressure device of a resetting and release device operating on the top bar comprising a toggle having one link operatively connected to the top bar and the other link operatively connected with a stile, the link connection with the top bar being extended to form a lever operating on a downward movement of the lever to reset through the operation of the toggle on the top bar pressure on the pressure device, the links being brought to approximate alignment in set position, the link'pivoted to the top bar having an inwardly extending arm; and means directly mounted on the top bar and "adapted to act on the arm for actuating the toggle.

WALTER L. II. 

